Improvement in plow-fastening devices



J.ROBB.

PLOW.

No; 9.332. Patented 001;. 12, 1852.

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UNITED STATES PATENT OFFICE.

JAMES ROBB, OF LEWISTOWN, PENNSYLVANIA.

lMPROVEM ENT IN PLOW-FASTENING DEVICES.

Specification forming part of Letters Patent No. 9,332. dated October12, 1852.

Figure-l is a perspective view of the plow.

Fig. 2 is a side view, looking toward the interior of the mold-board,with the landside, reversibie share, wedge F, and colter removed, theposition of the bar-point being seen in red I Fig.3is an interior sideview of the landside detached; Fig. 4., an inverted plan or under viewof a portion of the plow; Fig. 5, a" similar view, showing thereversible share E removed; Fig. 6, a detachedface view of the share,and Fig. 7 a perspective view of the wedge F.

Thesame letters of reference denote corresponding parts throughout theseveral figures.-

face j also, a stud, II, and book 0 on the same side. This stud andhook, when the landside is fitted to the plow, drop into recesses d 0,made in a projecting interior. flange, B, of the mold-hoard. 0, againstwhich flange the landside sits, and is held by the hook c hooking withinthe edge or lip of the recess e, and is further held by the reversiblebar-point D, when driven to its place, as will be hereinafter described.The flange B projects, so as to form a recess or groove, f, hfetween itand the mold-board, and the said flange at its lower and front extremityis provided with a lip, g, bending inward, and stud h, projecting alsoinward.

The mold-board, on itslower edge and at that part forming the oppositeside of the groove f to the flange B, has headed or lipped studs it,

for holding on the reversible share E, which is further held by atightening-wedge, F, having a lip, m.

i The reversible share has holes in it for the entrance through of thestuds 1 i and an opening, 1-, from which shoot branches at, for thepassage of the lip m through and its bite over the under face of theshare.

D is the bar-point, which is of any desirable len gth'and sharp at bothends. It also is made with notches on either side, any one of whichnotches is designed to receive the lip 9, so that the bar-point may bereversed or, as it wears, placed farther in advance.

H is the colter or cutter. Itis held between the moid-boa'rd andlandside, which act as clamps to secure it. It also may be reversed toprovide against wear.

To put these several parts together'the landside A is fitted to theflange B of the moldboard by inserting the book a into the recess 0, thecolter being dropped in its place between thelandside and mold-board.The bar-point D is then slid along the groove f, it bearing on itslower. side or face within and against the point-flange a and stud h,thereby retaining and tightening the landside to its booked attachmentin the recess 6. When the bar-point is at its proper position along thegroove f it is pressed in toward the flange B, so that one of the.notches on its side will be made to. receive the lip g, which preventsthe bar-point from being forced out of place when set. The wedge F isnext placed in the groove f alongside the bar-point, and so that theopening r and either one of the branchesn (according to which side ofthe share is uppermost) of the share E will receive therethrough the lipm, the share being seated to the mold-board by the studs '5 i enteringthrough openings in the. former, the said studs being slightly headed orlipped on their end, so as to lap over the edges of the holes they passthrough in the share,'and, when the wedge F is driven home, serving tohold the share to the mold-board. The wedge F is then driven inward fromthe front till the lip m bites tight on the share by its lap over theback edge of the branch n it fits.

Now it will be seen that the landside, reversible share, and bar-pointare or may be held in their place without either screw, bolt, ornut.Theyconsequently are lessliableto get loose, are firmer, and more simplyput together,

y sire ,to secure by Letters Patent, is-

Holding the share E to its nlace by a tightwing-wedge, F,.ha ving a lip,m, for lap or bite on the share, in conjunction with the headed orlippedstudsiifor further securing the same.

In testimony whereof I have hereunto signed my m me before twosubscribing Witnesses.

JAMES ROBB.

Witnesses.

ALFD GREGORY, A. E. H. JOHNSON.

